Detection of mycobacteria in paraffin-embedded Ziehl-Neelsen-Stained tissues using digital pathology.
Tuberculosis (Edinb)
; 126: 102025, 2021 01.
Article
em En
| MEDLINE
| ID: mdl-33254011
ABSTRACT
INTRODUCTION:
Early diagnosis of paucibacillary tuberculosis represents a challenge, even with direct tissue examination. Digital pathology allows the digital analysis of tissues to identify microorganisms. We aim to develop a program to detect and quantify typical and atypical mycobacteria in paraffin-embedded Ziehl-Neelsen-stained tissues. MATERIAL ANDMETHODS:
Program development The building of the program, named Pat-Scan, included pathology, systems engineering, and scientific applications. The iScan Coreo Au scanner® was used, and 9 variables were adjusted. Ten Ziehl-Neelsen-stained samples were fragmented into 2000 images and analyzed to validate the reproducibility of the bacilli images in the tissue, as detected by the software.RESULTS:
Pat-Scan included software and a scanner that were used to detect and quantify bacilli in paraffin-embedded Ziehl-Neelsen-stained tissues. All samples containing mycobacteria were successfully analyzed by the scanner, and the bacilli could be detected; these results were validated by expert pathologists by microscopy examination, and the presence of bacilli was confirmed in all cases.CONCLUSIONS:
Pat-Scan allowed the identification and quantification of mycobacteria in paraffin-embedded Ziehl-Neelsen-stained tissues, offering a reproducible diagnostic method that reduces the time for diagnosis and does not affect precision. Further validation is needed for application in the clinical setting.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Contexto em Saúde:
2_ODS3
/
3_ND
/
4_TD
Problema de saúde:
2_enfermedades_transmissibles
/
3_neglected_diseases
/
3_tuberculosis
/
4_tuberculosis
Assunto principal:
Patologia Clínica
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Tuberculose
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Diagnóstico por Computador
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Inclusão em Parafina
/
Diagnóstico Precoce
/
Mycobacterium tuberculosis
Tipo de estudo:
Diagnostic_studies
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Prognostic_studies
/
Screening_studies
Limite:
Humans
Idioma:
En
Revista:
Tuberculosis (Edinb)
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
Colômbia